Does anyone know or have a reference indicating what PLC [programmable logic controller] brands are popular in China?
I'm not sure if that term is applicable to Echelon's LonWorks control networks. They are peer-to-peer, CSMA networks, as opposed to the traditional master-slave PLCs. LonWorks networks are very popular in building control networking, for example. We have a new network technology called Pyxos FT (hey, I didn't make up the name, okay?), which uses TDMA and a master-slave architecture to acheive the determinism and high throughput of more traditional PLCs.Berkeman, are you offering what was being called soft PLCs?
Hope that helps!It seems that person wants to know the brands of PLCs being used in China. Actually I’m a member of TC124, a technical committee that handles standardization of fieldbus technologies. I review documents passed along in the committee. Popular technologies are Profibus (Profinet), Modbus, ControlNet, Interbus and etc. For the PLC brand, I believe most popular ones are Siemen’s or Controlnet (Rockwell), then it goes to Japanese maker Omron. Since the aviation industry is mission critical, I doubted that Omron plays a role there as Chinese are more likely and willingly to pay for the top brand - we want to use the best. Siemens and Rockwell are certainly the top brands in the industry.